A Model of Representing Extension and Shrinking for Spatial Relations

• 作者: Junpeng Wan Shan Zhong
• 来源期刊: 软件工程与应用(英文)
• 学科: 数学
• 关键词: RCC SPATIAL EXTENSION Qualitative TOPOLOGICAL
• 年，卷（期）: 2011,（3）
• 页码范围: 191-194
• 页数: 4页
• 分类号: O1

摘要

Aiming at region connection calculus (RCC) can only roughly represent spatial topological relations, and have difficulty in representing the distance, direction and so on. Therefore, based on RCC theory, Region Extension and Shrinking Calculus are proposed, and then a formalized metrization method using region as a basic unit is introduced. Based on RESC theory, taking the advantage such as application simplicity and easy realization of gird area method. The experiment proves the spatial relations can be easily obtained by Grid-Region method, and it is an effective way to repre- sent spatial relations.